Originally posted by: aircooled
[Q
Unfortunatley, the only way to truly troubleshoot the issue and rule out the OS is to install XP/2000 on the same hardware and see if you have the same results, maybe swap hard drives and give it a shot so as not to wreck your existing install. You've already put a different vid card in that worked well, have you tried putting your card in someone else's machine to see if you can duplicate the results?
Also, you mentioned that you flashed the 8500LE BIOS, did you modify the original BIOS's mem speed and re-flash, or did you download a new BIOS and flash? There are several BIOS variations for the 8500 and the best results come from taking your original BIOS and modifying the mem clock then re-flashing using your original modified BIOS. Hopefully you backed up the original BIOS that came with the card. Try going back to that at default clock speed and see what happens.
Besides that, you may want to post something over at
Rage3D.com forums. If it's a known issue ,you will surely find someone over there who has had the same problem.
Good luck. Let us know what happens.